Home / 1,331,355.60-1,997,497.05-420,677.03

Finding the Fourth Proportional to 1,331,355.60, 1,997,497.05 and 420,677.03

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Solution

The fourth proportional to 1,331,355.60, 1,997,497.05 and 420,677.03 is: 631,162.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,355.60 : 1,997,497.05 = 420,677.03 : x
  2. Step 2: Convert to fraction form
    1,331,355.60/1,997,497.05 = 420,677.03/x
  3. Step 3: Cross multiply
    1,331,355.60x = 1,997,497.05 × 420,677.03
  4. Step 4: Simplify right side
    1,331,355.60x = 840,301,116,440.28
  5. Step 5: Solve for x
    x = 840,301,116,440.28/1,331,355.60
  6. Step 6: Final answer
    x = 631,162.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.